Research on the Cause of Splitting of OH Vibration Spectrum in “Heibi”

Lu-lu DAI; Ming-xing YANG

doi:10.3964/j.issn.1000-0593(2021)12-3864-05

Journals >Spectroscopy and Spectral Analysis >Volume 41 >Issue 12 >Page 3864 > Article

Spectroscopy and Spectral Analysis
Vol. 41, Issue 12, 3864 (2021)

Research on the Cause of Splitting of OH Vibration Spectrum in “Heibi”

Lu-lu DAI^* and Ming-xing YANG^{1; 2; *;}

Author Affiliations

1. Gemmological Institute, China University of Geosciences (Wuhan), Wuhan 430074, China

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DOI: 10.3964/j.issn.1000-0593(2021)12-3864-05 Cite this Article

Lu-lu DAI, Ming-xing YANG. Research on the Cause of Splitting of OH Vibration Spectrum in “Heibi”[J]. Spectroscopy and Spectral Analysis, 2021, 41(12): 3864 Copy Citation Text

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Fig. 1. (a) and (b) show Raman spectrum and frequency doubling infrared absorption peak of OH in “Heibi”

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(a) shows the partition of “Heibi” and the EPMA test point position, marked in red (photographed under EPMA),(b)—(f) shows the OH vibration Raman spectrum of a test point position in (a)

Fig. 2. (a) shows the partition of “Heibi” and the EPMA test point position, marked in red (photographed under EPMA),(b)—(f) shows the OH vibration Raman spectrum of a test point position in (a)

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样品	Al₂O₃	SiO₂	K₂O	CaO	NiO	Cr₂O₃	Na₂O	MgO	FeO_T	MnO	TiO₂	Total	Mg/(Mg+Fe²⁺)
HB-1	6.14	52.86	0.23	11.86	0.01	12.27	0.45	13.84	0.06	0.10	0.22	98.02	67.2%
HB-2	5.55	53.55	0.20	11.77	0.01	12.28	0.38	14.42	0.05	0.10	0.09	98.40	69.0%
HB-3	5.08	53.86	0.19	11.52	0.02	12.00	0.38	14.67	0.05	0.11	0.07	97.95	70.2%
HB-4	5.67	53.67	0.23	11.72	0.02	12.01	0.40	14.54	0.05	0.11	0.08	98.49	69.8%
HB-5	5.20	53.82	0.21	11.66	0.04	11.90	0.34	14.71	0.05	0.09	0.07	98.07	70.2%

Table 1. Chemical composition of HB(Wt/%)

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样品	晶体化学式(A_0~1B₂C₅T₈O₂₂(OH)₂)
HB-1	(Ca_1.82Na_0.22Mn_0.01)_2.05(Mg_2.93 ${Fe}_{1.44}^{Ⅱ}$ Al_0.57 ${Fe}_{0.07}^{Ⅲ}$ Cr_0.03)_5.03(Si_7.52Al_0.46Ti_0.05)_8.00O₂₂(OH)₂
HB-2	(Ca_1.82Na_0.22Mn_0.01)_2.01(Mg_3.04 ${Fe}_{1.37}^{Ⅱ}$ Al_0.53 ${Fe}_{0.10}^{Ⅲ}$ Cr_0.01)_5.05(Si_7.58Al_0.40Ti_0.02)_8.00O₂₂(OH)₂
HB-3	(Ca_1.76Na_0.24Mn_0.01)_2.01(Mg_3.10 ${Fe}_{1.32}^{Ⅱ}$ Al_0.50 ${Fe}_{0.12}^{Ⅲ}$ Cr_0.01)_5.04(Si_7.64Al_0.35Ti_0.02)_8.00O₂₂(OH)₂
HB-4	(Ca_1.78Na_0.22Mn_0.01)_2.01(Mg_3.06 ${Fe}_{1.33}^{Ⅱ}$ Al_0.55 ${Fe}_{0.10}^{Ⅲ}$ Cr_0.01)_5.05(Si_7.59Al_0.39Ti_0.02)_8.00O₂₂(OH)₂
HB-5	(Ca_1.78Na_0.22Mn_0.01)_2.01(Mg_3.10 ${Fe}_{1.32}^{Ⅱ}$ Al_0.51 ${Fe}_{0.10}^{Ⅲ}$ Cr_0.01)_5.05(Si_7.62Al_0.36Ti_0.02)_8.00O₂₂(OH)₂
C99^[6]	(Ca_0.03Na_0.01)_0.04( ${Fe}_{1.03}^{Ⅱ}$ Mn_0.08Mg_0.62Na_0.05)_1.78(Al_0.02 ${Fe}_{1.70}^{Ⅲ}$ Mg_3.18)_4.90(Si_7.71Al_0.34)_8.05O₂₂(OH_0.87O_1.11)_1.98
Hlq1^[6]	Na_0.04(Mn_0.01Li_1.94Ca_0.06)_2.01(Al_2.03Mn_0.03Mg_2.03 ${Fe}_{0.95}^{Ⅱ}$ )_5.04(Si_7.95Al_0.05)_8.00O₂₂(OH_1.96O_0.04)₂
S5^[10]	(Ca_0.07Na_0.03K_0.01)_0.11( ${Fe}_{1.98}^{Ⅱ}$ Mn_0.02)_2.00Mg_5.00(Al_0.02Si_7.98)_8.00O₂₂(OH)₂
AMNH34856^[11]	Na_0.01(Mg_1.30Mn_0.57Ca_0.09Na_0.04)_2.00(Mg_4.95Fe_0.02Al_0.03)_5.00Si_8.00O₂₂(OH)₂

Table 2. Crystal chemical formulas of HB and other samples

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样品	Cr	Ti	Mn	Co	Ni	V
HB	420.06	582.23	955.13	34.23	120.24	203.68

Table 3. Partial transition metal ion content of HB (μg·g^-1)

Lu-lu DAI, Ming-xing YANG. Research on the Cause of Splitting of OH Vibration Spectrum in “Heibi”[J]. Spectroscopy and Spectral Analysis, 2021, 41(12): 3864

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